The baseball is on the floor, ________ the bookcase and the desk.
| A．on | B．in | C．behind | D．between |
All the teachers love Mary. She is veryin answering teachers' questions in class.
| A．polite | B．direct | C．active | D．lively |
Those who would like to help others always have more chances to help____．
| A．them | B．themselves | C．us | D．ourselves |
The movie was so funny that all of us kept laughingstopping.
| A．for | B．by | C．with | D．without |
All of us admired Tina for her____ because she climbed up to the top of the mountain.
| A．value | B．courage | C．request | D．pride |
Brian's parents usually treat him as____adult though he is only a 12-year-old boy.
| A．a | B．an | C．the | D．／ |